Fermentation Quality of Round-Bale Silage as Affected by Additives and Ensiling Seasons in Dwarf Napiergrass (Pennisetum purpureum Schumach)
1
Nagasaki Agricultural and Forestry Technical Development Center, Shimabara, Nagasaki 859-1404, Japan
2
Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan
3
NARO Kyushu Okinawa Agricultural Research Center, Koshi, Kumamoto 861-1192, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Jerry H. Cherney
Agronomy 2016, 6(4), 48; https://doi.org/10.3390/agronomy6040048
Received: 10 July 2016
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Revised: 2 October 2016
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Accepted: 13 October 2016
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Published: 18 October 2016
Fermentation quality of dwarf napiergrass (Pennisetum purpureum Schumach) was estimated for additives lactic acid bacteria and Acremonium cellulase (LAB + AC), fermented juice of epiphytic lactic acid bacteria (FJLB), and a no-additive control in 2006 via two ensiling methods—round-bale and vinyl-bag methods in 2006—and via two ensiling seasons—summer and autumn of 2013. Fermentation quality of dwarf napiergrass ensiled in the summer season was improved by the input of additives, with the highest quality in LAB + AC, followed by FJLB; the lactic acid content was higher, and the pH and sum of the butyric, caproic, and valeric acid contents were lower, resulting in an increase in the V-score value by each additive. The ensiling method in autumn without additives affected fermentation quality, mainly due to the airtightness, which was higher for round-bale processing than in vinyl bags, even with the satisfactory V-score of 72. Fermentation in round bales without additives had a higher quality in autumn than in summer, possibly due to the higher concentration of mono- and oligo-saccharides. Thus, it was concluded that dwarf napiergrass can be produced to satisfactory-quality silage by adding LAB + AC or FJLB in summer and even in the absence of additives in autumn.
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MDPI and ACS Style
Fukagawa, S.; Ishii, Y.; Hattori, I. Fermentation Quality of Round-Bale Silage as Affected by Additives and Ensiling Seasons in Dwarf Napiergrass (Pennisetum purpureum Schumach). Agronomy 2016, 6, 48. https://doi.org/10.3390/agronomy6040048
AMA Style
Fukagawa S, Ishii Y, Hattori I. Fermentation Quality of Round-Bale Silage as Affected by Additives and Ensiling Seasons in Dwarf Napiergrass (Pennisetum purpureum Schumach). Agronomy. 2016; 6(4):48. https://doi.org/10.3390/agronomy6040048
Chicago/Turabian StyleFukagawa, Satoru, Yasuyuki Ishii, and Ikuo Hattori. 2016. "Fermentation Quality of Round-Bale Silage as Affected by Additives and Ensiling Seasons in Dwarf Napiergrass (Pennisetum purpureum Schumach)" Agronomy 6, no. 4: 48. https://doi.org/10.3390/agronomy6040048
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